Running Test Phase after Mpkg/Destroot

[Jeremy Lavergne]

I installed a package (with auto-clean on), then created a pkg from it. I then tried running test phase which error'd out because the build dir wasn't around to run tests (e.g. `make check`).

Are unarchive/mpkg/mdmg phases that allow the test phase?

m-vm-108:pspp-devel aeetes$ cat work/.macports.pspp-devel.state 
version: 2
checksum: afe1f7638c6b5398e0f667f507e3a85e835479faa06a1b816195f72ef09ad825
variant: +gui
variant: +graph
variant: +quartz
target: org.macports.archivefetch
target: org.macports.fetch
target: org.macports.checksum
target: org.macports.extract
target: org.macports.patch
target: org.macports.configure
target: org.macports.build
target: org.macports.destroot